Make smooth endoplasmic reticulum out of clay by observing the folds of the eukaryotic organelle, or animal cell part. According to the British Society for Cell Biology, the smooth endoplasmic reticulum's job is to metabolize fats and certain hormones so the cell can function normally. Craft the organelle by being sure the clay is a soft consistency for the project. Use air-dry clay, which does not need to be fired. It should press down easily, but not sticky to the touch. Add drops of water to the clay if it is too hard or let it dry out on your table for about one hour if it is too wet.
Review diagrams of smooth, endoplasmic reticulum from websites, such as the British Society for Cell Biology. Roll your clay into a ball that is approximately 3 inches wide. Press it down onto a smooth surface to begin forming the smooth, endoplasmic reticulum.
Push your rolling pin onto the clay and roll it until you have a vertically rectangular sheet about 1/4-inch thick. Pull if off your table to prevent it from sticking.
Fold the top sheet of clay down one-third. Take that folded edge back to the top crease. Be sure the folds are gentle since the smooth endoplasmic reticulum has soft, rounded folds and creases.
Pull up the bottom of the clay sheet to the top of the smooth endoplasmic reticulum. Press the bottom crease gently, then take the top edge back to the bottom crease.
Slice a 1-inch piece from the side of the smooth endoplasmic reticulum if you are using it for an animal cell model craft.
Smooth, endoplasmic reticulum looks similar to folded lasagna sheets. Be sure your smooth endoplasmic reticulum looks like a bundle of folded sheets before slicing. Allow it to dry for about 48 hours if you need to harden the smooth, endoplasmic reticulum. If you want to keep it soft, place it into a plastic bag.